1. Mulliken Center for Theoretical Chemistry; Rheinische Friedrich-Wilhelms-Universität Bonn; Beringstr. 4+6 53115 Bonn Germany
2. Helmholtz-Zentrum für Umweltforschung Leipzig; Department Ökologische Chemie; Permoserstrasse 15 04318 Leipzig Germany
3. SMRI Sugarcane Biorefinery Research Chair; University of KwaZulu-Natal; College of Agriculture, Engineering and Science School of Engineering; Howard College Campus Durban South Africa
4. Department of Chemistry; Sapienza University of Rome; 00185 Rome Italy
5. Laboratorio Liquidi Ionici, Istituto Struttura della Materia; Consiglio Nazionale delle Ricerche; 00133 Rome Italy